Question: In each of the following, the indicated observations were made before any of the starting material was transformed to aldol addition or condensation products: (a)

In each of the following, the indicated observations were made before any of the starting material was transformed to aldol addition or condensation products:
(a) In aqueous acid, only 17% of (C6H5)2CHCH═O is present as the aldehyde; 2% of the enol is present. Some other species accounts for 81% of the material. What is it?
(b) In aqueous base, 97% of (C6H5)2CHCH═O is present as a species different from any of those in part (a). What is this species?

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